135135043 has 4 divisors (see below), whose sum is σ = 135199240. Its totient is φ = 135070848.

The previous prime is 135135037. The next prime is 135135061. The reversal of 135135043 is 340531531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340531531 = 1571 ⋅216761.

It is a cyclic number.

It is not a de Polignac number, because 135135043 - 2¹³ = 135126851 is a prime.

It is a super-2 number, since 2×135135043² = 36522959693223698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135134999 and 135135017.

It is not an unprimeable number, because it can be changed into a prime (135135443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28830 + ... + 33187.

It is an arithmetic number, because the mean of its divisors is an integer number (33799810).

Almost surely, 2^135135043 is an apocalyptic number.

135135043 is a deficient number, since it is larger than the sum of its proper divisors (64197).

135135043 is an equidigital number, since it uses as much as digits as its factorization.

135135043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64196.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 135135043 is about 11624.7599114992. The cubic root of 135135043 is about 513.1637790597.

Adding to 135135043 its reverse (340531531), we get a palindrome (475666574).

The spelling of 135135043 in words is "one hundred thirty-five million, one hundred thirty-five thousand, forty-three".